#include<stdio.h>
#include<string.h>
int main()
{
    char a[41] = { 0 }, b[41] = { 0 }, c[81] = { 0 }, i = 0, j = 0;
    gets(a);
    gets(b);

    while (*(a + i)) {
        c[i] = *(a + i);
        i++;
    }

    while (*(b + j)) {

        c[i + j] = *(b + j);
        j++;
    }


    printf("%s", c);


